Analysis

  • max time kernel
    141s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 06:21

General

  • Target

    SecuriteInfo.com.Win64.DangerousSig.15709.19314.exe

  • Size

    1.1MB

  • MD5

    78bd2bd5c0e94fa766e367a168bb4533

  • SHA1

    d7ea5bca4e50e39c6dca8c7b6831d7600c3ce2bb

  • SHA256

    b542502918e537abff66105f9432f29e6d8ba7d4169b7d2894dd9ed3261e0141

  • SHA512

    1a656e55ad828cc27956446a2d5e4d74b01d56d373aec3bb64c86d5239f4bebb225dc04af1bfebc8d7738c70578cc860e395992faddfbf69a9811c3871a8fe5b

  • SSDEEP

    24576:x8BmfWBiORmU0z9TY4VE6tH/R5Hn8AFFsY7bP78:uUjH/zfLsqP78

Malware Config

Extracted

Family

xworm

Version

5.0

C2

79.110.49.133:5700

Mutex

Bg9JRZDpyEfXxrAy

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.DangerousSig.15709.19314.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.DangerousSig.15709.19314.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2016
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.DangerousSig.15709.19314.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3128
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2344
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
        PID:4644

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ez22rgo1.3ps.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2016-3-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/2016-2-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/2016-24-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/2016-4-0x0000015833E00000-0x0000015833E60000-memory.dmp

      Filesize

      384KB

    • memory/2016-0-0x00007FFA45923000-0x00007FFA45925000-memory.dmp

      Filesize

      8KB

    • memory/2016-1-0x0000015833BB0000-0x0000015833BBC000-memory.dmp

      Filesize

      48KB

    • memory/2344-5-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/2344-6-0x00000000748EE000-0x00000000748EF000-memory.dmp

      Filesize

      4KB

    • memory/2344-28-0x00000000748EE000-0x00000000748EF000-memory.dmp

      Filesize

      4KB

    • memory/2344-9-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

      Filesize

      624KB

    • memory/2344-27-0x0000000006650000-0x0000000006BF4000-memory.dmp

      Filesize

      5.6MB

    • memory/2344-26-0x0000000006000000-0x0000000006092000-memory.dmp

      Filesize

      584KB

    • memory/2344-25-0x00000000055B0000-0x0000000005616000-memory.dmp

      Filesize

      408KB

    • memory/3128-8-0x000002498EAA0000-0x000002498EAC2000-memory.dmp

      Filesize

      136KB

    • memory/3128-23-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/3128-20-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/3128-19-0x00007FFA45920000-0x00007FFA463E1000-memory.dmp

      Filesize

      10.8MB

    • memory/3128-7-0x00007FFA45923000-0x00007FFA45925000-memory.dmp

      Filesize

      8KB